the Vienna MS (V) has throughout: quid dicat spiritus filiis doctrinae
This passage identifies 'V' (Viu's manuscript sigla) as a distinct witness in the critical apparatus of Aurora Consurgens, where its readings diverge from other manuscripts on doctrinally significant phrases concerning spirit and teaching.
, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966thesis